

Launch lite
System76 Launch Configurable Keyboard
- Size
- 299 × 99 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 225
- Nets
- 209
- Pads
- 1,100
- Tracks, vias
- 1,375, 292
- Pours
- 150
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Dec 2019
- Updated
- 2 Jul 2025
Overview
Launch lite is an open-source printed circuit board by system76, from the system76/launch repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 299 × 99 mm with 225 parts on 209 nets, routed with 1,375 tracks and 292 vias.
It is built around the AT90USB646-MUR, M3406-ADJ and USBLC6-2SC6, with the CPG151101S11, SK6805-EC15 and BAV70,215-JSM among its other parts. Its parts include 35 diodes, 19 capacitors, 8 resistors, 4 ICs and 3 connectors. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
9AT90USB646-MUR
QFN-64-EP(9x9)-40℃~+85℃ 10bit 16MHz 2.7V~5.5V 2KB 48 4KB 64KB 8 Bit AVR Built-in FLASH QFN-64-EP(9x9) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)M3406-ADJ
SOT-23-51 2V~6V 800mA Buck Buck Yes SOT-23-5 DC-DC Converters ROHS西安航天民芯DC-DC ConvertersUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)CPG151101S11
SMDSMD Mechanical Keyboard Shaft ROHSKailhMechanical Keyboard ShaftSK6805-EC15
SMD-4P,1.5x1.5mm-40℃~+80℃ 0.5mA 0.65mm 1.5mm 1.5mm 120mcd~240mcd 160° 1kHz 2000V 20mcd~40mcd 3.5V~5.5V 460nm~470nm 50mcd~100mcd 520nm~530nm 620nm~625nm 800Kbit/s Built-in power-on reset circuit、Built-in one-way transmission function Semi-transparent lens SMD-4P,1.5x1.5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)BAV70,215-JSM
SOT-23-55℃~+150℃ 1 Pair Common Cathode 1.25V@150mA 2.5uA@70V 200mA 6ns 70V SOT-23 Switching Diodes ROHSJSMSEMISwitching DiodesECS-160-18-23G-JGN-TR
SMD6035-2P-40℃~+85℃ 16MHz 18pF 50Ω ±20ppm ±30ppm SMD6035-2P Crystals ROHSECSCrystalsSRN4018TA-2R2M
SMD,4x4mm2.2uH 2.9A 3A 42mΩ ±20% SMD,4x4mm Power Inductors ROHSBournsPower InductorsTYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdSystem76 Launch Configurable Keyboard
The System76 Launch Configurable Keyboard is designed to provide the ultimate user controlled keyboard experience, with open source mechanical and electrical design, open source firmware and associated software, and a large number of user configuration opportunities. It is registered open source hardware with OSHWA UID US001062.
Mechanical Design

Open Source Chassis
The Launch chassis is licensed CC-BY-SA-4.0 and can be viewed in the chassis folder using FreeCAD.
Milled Aluminum
The chassis is milled from two solid blocks of aluminum and powder coated to provide excellent fit and finish. Each pocket, port, and hole is designed and precisely machined so that swapping switches and plugging in cables is easy and secure for the user.
Detachable Lift Bar
The included lift bar can be magnetically secured to add 15 degrees of angle to your keyboard for ergonomics.
Innovative Layout
The layout is designed to provide a large number of remapping opportunities. The default layout can be viewed here, and the extra keys included can be viewed here.
Swappable Keycaps
The keycaps are PBT material with a dye sublimation legend and XDA profile to provide excellent feel and lifespan. Extras are provided for common replacements and color preference. An included keycap puller can be used to move and replace the keycaps.
Swappable Switches
The switches are mounted in sockets that support any RGB switch with an MX compatible footprint. Examples are the Cherry MX RGB switches and the Kailh BOX switches. Switches can be removed easily at any time with the included switch puller.
Electrical Design

Open Source PCB
The Launch PCB is licensed GPLv3 and can be viewed in the pcb folder using KiCad.
Integrated Dock
Launch connects to a computer using the included USB-C to USB-C cable or USB-C to USB-A cable. It supports USB 3.2 Gen 2 with speeds up to 10 Gbps with either cable, provided the computer supports these speeds. It provides 2 USB-C and 2 USB-A connectors that also support USB 3.2 Gen 2, with the 10 Gbps bandwidth shared between them on demand.
Independent RGB Lighting
Each switch has an RGB LED that is independently controlled by firmware. This allows for a number of RGB LED patterns to be selected.
N-Key Rollover
The keyboard matrix uses diodes on all intersections, providing full independent scanning of each key position.
Firmware and Software
Open Source Firmware
The Launch firmware is based on QMK,
licensed GPLv2, and the latest version is linked in the firmware submodule.
Open Source Software
Projects that integrate with Launch are open source software, such as the System76 Keyboard Configurator, licensed GPLv3, and fwupd, licensed LGPLv2.1.
Easy Remapping
The keyboard can be remapped at runtime using the System76 Keyboard Configurator. This utility runs on Linux, Mac OS, and Windows.
Firmware Updates
Firmware updates are supported through the fwupd project, and are distributed using the related Linux Vendor Firmware Service. Settings are stored on EEPROM and are maintained through firmware updates.
Parts
225| Qty | Value | Footprint | References |
|---|---|---|---|
| 70 | CPG151101S11 | Kailh:Kailh_socket_MX | SWA1, SWA2, SWA3, SWA4, SWA5, SWB1, SWB2, SWB3, SWB4, SWB5, SWC1, SWC2, SWC3, SWC4, SWC5, SWD1 +54 |
| 70 | SK6805-EC15 | launch:LED_SK6805-EC15 | LA1, LA2, LA3, LA4, LA5, LB1, LB2, LB3, LB4, LB5, LC1, LC2, LC3, LC4, LC5, LD1 +54 |
| 35 | BAV70,215 | Package_TO_SOT_SMD:SOT-23 | D10, D11, D12, D13, D14, D16, D17, D18, D19, D20, D22, D23, D24, D25, D26, D28 +19 |
| 14 | 1 uF | launch:C_0402_1005Metric | C0, C1, C2, C3, C4, C7, C59, C60, C61, C62, C64, C65, C66, C67 |
| 9 | MountingHole_Pad | launch:MountingHole | H1, H2, H3, H4, H5, H6, H7, H8, H9 |
| 4 | Fiducial | Fiducial:Fiducial_0.75mm_Mask1.5mm | FID1, FID2, FID3, FID4 |
| 3 | 8.2 uF | Capacitor_SMD:C_0805_2012Metric | C35, C48, C49 |
| 2 | 10 k | launch:R_0402_1005Metric | R4, R26 |
| 2 | 22 | launch:R_0402_1005Metric | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 5.1 k | launch:R_0402_1005Metric | R1, R5 |
| 1 | 499 | launch:R_0402_1005Metric | R27 |
| 1 | 52.3 k | launch:R_0402_1005Metric | R25 |
| 1 | AP22811AW5-7 | launch:SOT-23-5 | U16 |
| 1 | AT90USB646-MUR | Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP7.5x7.5mm | U1 |
| 1 | DNP | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J1 |
| 1 | DNP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | ECS-160-18-23G-JGN-TR | Crystal:Crystal_SMD_0603-2Pin_6.0x3.5mm | Y0 |
| 1 | M3406-ADJ | launch:SOT-23-5 | U4 |
| 1 | SRN4018TA-2R2M | Inductor_SMD:L_Bourns-SRN4018 | L2 |
| 1 | System76Logo | Logo:System76 | LOGO1 |
| 1 | TYPE-C-31-M-12 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J0 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U0 |
Questions
How big is the Launch lite PCB?
It measures 299 × 99 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Launch lite use?
225 parts, built around the AT90USB646-MUR, M3406-ADJ, USBLC6-2SC6 and CPG151101S11. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Launch lite KiCad files?
From the system76/launch repository on GitHub, at the commit this page was made from: the board is pcb-lite/launch-lite.kicad_pcb and its schematic pcb-heavy/launch-heavy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Launch lite design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from system76/launch
3- 4 layers299 × 127 mm

- 4 layers299 × 127 mm

- 2 layers76 × 112 mm

Similar boards
- 2 layers371.5 × 152.4 mm

- 2 layers353.1 × 124.9 mm

- 2 layers344.7 × 123.1 mm

- 4 layers96 × 28 mm

- 2 layers100 × 60 mm

- 2 layers40 × 30.5 mm

- 4 layers40 × 65 mm

P-1000011 Okra Cicada 4G PCBA
EnAccess/Cicada-GSM-HW
IoT Communications Module for Energy Access. A quick way to get production ready, bi-directional communications for your IoT embedded device.
95 parts12MIT - 2 layers209.6 × 66.7 mm
